Rotary fan.



PA'IBNTED NGV. 19, 1907.

.0. E: G AMPBBLL.

ROTA RY FA N. AP'PLIOATION FILED APR. 1e. 1906.

' 2 SHEETS-SHEET 1l iNa.-:fsy1,672. PATENTED Nov. 1'9, 1907. c. E.CAMPBELL.

.ROTARY FAN. Mrmvonx'on Hmm A Pn. 16,11906.

2 SHEETS-SHIRT;` 2.

' from being unduly accelerated.

CHARLES E. CAMPBELL, LYNN, MASSACHUSETTS.

ROTARY FAN.

Specification of Letters nterit.

linten Application ileil April 16.1906. Serial No. 311.88%

`nicntin iltoting Fons, ot' which the following description, inconnection with the nccompu- -nying drawings, is ai specilicotion, likeletters on `the drawings representiner like. parts.

The .present invention relntes to n rotiir)v .ian, :the purpose of theinvention being to cause afan rotated by u suitable motor to :revolvebodily, in order to produce u continunl variation in the direction ol'the curront of airiproduced by the l'zin.

.lif accordance with the invention, tho tun fproperis provided with nybein-ing member, which in turn is capable, of rotuting` on am axis sothat the said bearing member will curry the tan with :i revolvingmovement around the ii-xis ol` lthe bein-ing member.

ln order to produce the revolving niove nient, the resistunce ot the niris utilized, :i further feature ol' the invention consisting in niezinsfor controlling the revolving movement ol" the inn so us to prevent thesinne The fini is herein shown iis embodied in what is known iis unelectric hin, :i smiill electric motor being utilized to drive tho innbhideS',ithe-t`1m, however, in this euse, having a bearing independentot' the bearing for the rotary member ot thc moto-r, so llmt the sind.fain is ,capable ol' movement independent ot' `thc motor.

A further feature, ot the invention is embodied in means for adjustingYthe nnguhir rehit-ion of the izin shail't to the motor shul't, so :is tovary the zingnhir position ol the hin.

Figure 1 is n. vertical section, purl-l)Y in elevation, ol' u rotary funenibodiine' the invention; Fi". 2 is u siinihir view loiiitimgr towardsthe right hund side of Fig. l; Fig. 3 is :i `horizontal sectionaldetail, on lino zr, ot Fig. 1; Fig. 4 is ai horizontal section, on lino:rfo'l Fig. 2; und Fig. 5 is iin elevation showing,r n. inodiliedconstruction, in which menus `aire, shown l'or udjustiner the :ingle oithe `l'nn axis.

The fini a., which is ot the ordinair)r type, is herein shownns lnivingubearingr in :i meinbcr (i which, in turn, beurs on u member c so-tlnit'itis czipiible of rotation with relation to sind ineinbcr. ,lnthe construction shown, the member c consists oi' n .'erticiil sleevewhich surrounds the driving lni't 5 which is connected with the rotormember or urnnilm'e dif oi the motor l?. "..he member c nlso constitutes:i beiiring, ns indien ted nt c2; for the upper end ol the driving;slndt d. transmit the rolnrv movement oi the drivingr shntt to the l'nn,the driving si' `1, :ind the inn-simil lI`- nre provided with n nection,such :is n puir oi inelinei'l genis o und o which mosh when the drivingyund driven members :ire substimtiiill;v nt n, right :ingle to euchother. tlrlee Figs. l, und si.) lt is obvious, however, ihnt en votlier:-.;i1itnble driving eonnection might be employed to eonneel thedriving; shiil't d with the inn to produce the rolnrv movement thereof,us, l'or example, in the construction shown in Fig. 5, which will behereiimt'er described in detail.

The fun is indiented ris oliset with relation to the axis of thedriving; sinil't o', so tlnit, :is soon us the l'iin 1i begins to rotaieund the bhides eneouiilir resistnnee l'rnin the inertial, olA the idrllliire will be n renctionnr); eil'ect through the peurs, the resislnneeto the ro tur)l movenlllt. musing thrlenr rfi' to rotate the belirin;rmember in the direfl lution ot the geur if, thus ennsi the tim shrill-tolriivei rndinlly, ond the inn itself to evifiivr faiioi'nid the nxis otthe driving shol't if'.

,lt is Hbvions llnil other l'nz'msolv ronnrw tion might be employed wherQ ilse inn n'olld iivolve ill the opposite :lii.\- tiili, liiit is tosuv, would be nilshed bodily mieli by the resistance olthe; r, bnl theeonsi rnetion show n is ilesirnhie in view ol the inet lnit thc elleetol thi` l'nn in produeingg un :or rurre is ilierebv inerezisod rnt herthnn redneed. t is tnrlher desirnble io eonirol the revolvingA movementso ns lo prevent the nine l'rom beeoinino loo higrlilj." serelerni und,l'or this purpose. n rr-incliner ileviee is employed in connection withtbe rolnr v bearing; mein'- ber o. ln the eonsrnetion shown, the sindrotnrhv bearinga member [i is provided with un eseaipemenl deviee whii-bis' herein shown ns :i member provided with two teeth lf3, the sindmember bein; pivoled nt to. 'lille teeth Ii eoi'pernte with teeth ifformed nrouud the rotatingl member o, the operzilion beings,Y that ol'un ordinair)v esenpcment, since the movetion et ro o ment of the memberif in one direction reonc tooth, while the movement in. the oppositedirection releases another. The oscillating movement of the member b2 isherein iinlicated as lurther controlled by means oi' a weighted pendulumo which is shown pivoted at bl and connected with the member b' at 58.*

it will be seen from. the foregoing description that when the motor Dvis started, the fan o wili begin to rotate, while the 'reaction ol" theair upon the blades u ill cause the revolving movement to be setup,which revolving movement can be perfectly controlled through the actionof the retarding device or escapen'ient hereinbclfore described.

li`hc twigltcd portion of the pendulum o is indicated s longitudinallyadjustable with 'redition to the stem of the pendulum, so that means ofa se the ell'cct ol the escaj'iement can be adjusted to accelerate orretard the revolvingmotion ol 'the lan. in the construction shown, theweight held in its adjusted position by screw o".

A .further feature of the invention consists in an arrangement wherebythe axis of the l'an. may be varied in position with relation to themotor, this feature being especially desirable .in connection withceiling` fans, in which it is usually best to have the current of airdirected, to a certain extent, downward. l/Yhile, therefore, thisfeature of the invention may be useful and desirable in any fan, l haveshown it embodied in a ceiling l'an.

Referring to Fie'. 5. the bearing member l'or the lar. c whichcorrespomls to the meniber l, previously described, is made in twoparts, viz., the sleeve bm which bears on the stationary member c toprovide for the rotation of the l'an bearing member, and the part bwhich ai'ords the direct bearing;r for the fan shaft. "lhese two partsare provided with bracket arms al and L which are hinged together atb1", so that the annular relation bets-o :i the driving shaft d of themotor and 'the lan shaft may bel adjusted. The two parts of thebearingmember are arranged to be clamped together after the proper adjustmenthas been made by mea-ns of a thumb screw 5"". ln this construction, inorder that the annular position of the two shafts may be adjustedwithout interfering with the drivingf connection, the said driving'Icomiection is made through the agency oi' friction who ls all and mi"which correspond to the gears of and e, these friction .wheels having,as shown, convex peripheries preferably of some such substance asrubber, the coiivcxity beingsuch that 'the wheels will remain infrirtional engagement with each other throughout a reasonably wide rangeof adjustment. L other respects, the construction sulx'tantially thesame that previously lb i the sleeve om, however,

being supported upon a collar c30 at the end of the stationary bearingmember c, instead ol" resting; upon the frame o1. the motor. 'i heescapement device is also located near the top or the member b1", butthe construction and oporfgion of said escapement device are thesame-lts described in connection with Figs. 1., 2 and 3. It is obvious,however, that' the adjustable feature might be equally well applied tothe fan having the ordinary standard, the. ceiling construction havingbeen chosen as an illustration merely for the reason that the adjustablefeature isrnore nearly essential when the fan is hungr from above.

l. fl- `he combination with a rotary fan; of a'inotor vthe body portionof which is stationary.; a bearing for said fan rotatably mounted withrelation to'said motor whereby said fan may be revolved; and a drivingconnection between the motor shaft and the fan shaft whereby thereactionary effect of the air resistance causes the rotation ofthe fanshaft bearing in the direction of the air current. produced by the fan;

2. The combination with a rotary fan; of a motor; a bearing member-forthe motor shaft upon which the fan shaft bearing mein-y beris rotatablymounted; and a driving connection between said shafts whereby thereactionary effect of the resistance of the air' causes the fan shaftbearing to rotate in the lirection of the air current produced by th an.l

3. The combination with a rotary fan and its shaft of a rotary bearingfor said shaft; a motor shaft; a driving Iconnection between said motorshaft and said .fan shaft whereby the reactionary eil'ect of the airresistance causes the fan shaft bearing to rotate in the direction ofthey air current produced by the fan; and meansA for retardinig thespeed of rotation of said fan shaft bearing member.

4. The combination with a motor; of a Ydriving shaft connected with therotary member thereof a vertical bearing for-said driving shaft; asleeve mounted to rotate on the` outside of said vertical bearing; a fanhaving a bearing connected with said sleeve; gea s connecting!` f thedriving shaft of the motor with the fan shaft ,to cause the rotation ofthe fan shaft, and also by the reac' tion of the air the rotation' ofthefan shaft bearing,r in thindirection of the air current; and aretarding'rdeviee cooperating with the sleeve, substantially asdescribed.

5. The'combination with a rotary fan; of a motor the body portion ofwhich is stationary;- a bearing for said fan rotatatilyanoun ted, withrelation to said motor, where said fam may be revolved as well asrotate(- a posii525 tive driving connection between the motor shaft andthe fan shaft whereby the reactionary effect ofthe air resistancecausesthe rote- A. tion of the fan shaft'bearn in the direction name to thisspecification n the presence of l5 ing shaft 'Without disconnecting oneshaft Witnesses:

of the air current produce by the fan; and two subscribing witnesses.

means for adjusting the angle at which the fan shaft stands Wlthrelation-*to the drv- CHARLES E' CAMBELL from the other. M. E. COVENEY,

In testimony whereof, I have signed'my H. J. LWERMORE.

